2-3-4-5-6-7 2-2-3-3-3-3 2-3-4-4-3-2 2-2-4-4-4 3-5-5-5-3 3-4-5-4-3 3-1 3-4-4-4-4-3 3-4-4-4-3 3-3 4-5-5-5-4 4-4 4-3-3-3-4 4x3 5-6 5-5 5-1 5-4 5x3 5-3 6-3 6-7 6-6 6-4 6-5 7-7 7-5